Sodium Hydroxide → Aminopyralid

HRID 1445291Notes

Reaction equation

HRID 1445291 reaction equation
[OH-].[Na+].[NH2:3][C:4]1[C:9](Cl)=[C:8]([Cl:11])[N:7]=[C:6]([C:12]([OH:14])=[O:13])[C:5]=1[Cl:15]>O>[NH2:3][C:4]1[CH:9]=[C:8]([Cl:11])[N:7]=[C:6]([C:12]([OH:14])=[O:13])[C:5]=1[Cl:15]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 15965Picloram

Product 1

HCID 213012Aminopyralid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a 4-liter (L) flask was added 2400 grams (g) of hot water, 250 g of 50 percent by weight NaOH, and 350 g of wet 4-amino-3,5,6-trichloropyridine-2-carboxylic acid (80 percent). The solution was stirred for 30 minutes (min), filtered through a 1 micron polypropylene film, and transferred to a 5-L feed circulation tank. This solution weighed 3000 g and contained 9.3 percent 4-amino-3,5,6-trichloropyridine-2-carboxylic acid and 2.0 to 2.5 percent of excess NaOH.

Workup

  1. filtrationfiltered through a 1 micron polypropylene film

Sources & evidence

ORD record
ord-6d968cc5aeb64b798831b3fc53d67fe4
Source dataset
uspto-grants-2010_02
Patent number
US07666293B2

Reaction notes

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